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Problems in the package library--Concatenation [2]
李沖
李沖 2019-03-09 22:04:55
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Base.prototype.css=function(attr,value){

// this.elements[0].style.attr=value;

this.elements[0]. style[attr] = value;

return this;

Question: The writing style['color'] reports an error, why can it be passed in as a parameter? Thank you, teacher

}


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